nd has decided to begin building its first standard-gauge railways in cooperation with China, ______may cost $12.2 billion.

_______ more to be pitied than blamed．

235. The thief was caught by a ______ inplain clothes.

Excuse me, could you please tell me ___—Sorry. But the bus stop is over there. You can go and check the bus lines.

The experiment shows that proper amounts of exercise,if___________regularly, can improve our health[ ]